The spatial variability of soil water storage and its controlling factors during dry and wet periods on loess hillslopes

Mei, Xuemei; Zhu, Qing; Ma, Lei; Zhang, Dong; Liu, Huifang; MengJun, Xue

doi:10.1016/j.catena.2017.10.029

Cited by 41 publications

(21 citation statements)

References 43 publications

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“…In this case, it was reasonable that the SWC values across the 0 to 300‐cm soil profile followed the growing season rainfall sequence (2009 > 2011 > 2010 > 2012) to some extent (Figure ). This was also consistent with previous studies conducted in different precipitation regions, where higher precipitation was accompanied by higher SWC (Mei et al, ; Zhao et al, ). Researchers have pointed out that precipitation affects soil moisture through the infiltration of rainwater (Wang et al, ; Wang, Fu, Gao, Yao, & Zhou, ), which is directly related to the transformation of limited precipitation into the available soil moisture for plant utilization (Mahmood, ).…”

Section: Discussionsupporting

confidence: 93%

“…This was also consistent with previous studies conducted in different precipitation regions, where higher precipitation was accompanied by F I G U R E 3 Temporal response of the SWC to precipitation at monthly scale. A, abandoned farmland; L, black locust land; O, oak land; S, shrubland; SWC, soil water content higher SWC (Mei et al, 2018;Zhao et al, 2017). Researchers have pointed out that precipitation affects soil moisture through the infiltration of rainwater (Wang et al, 2008;Wang, Fu, Gao, Yao, & Zhou, 2012), which is directly related to the transformation of limited precipitation into the available soil moisture for plant utilization (Mahmood, 1996).…”

Section: Effects Of Precipitation and Vegetation Types On Soil Moismentioning

confidence: 99%

“…As a critical water resource for vegetation growth and agricultural development (Hu, Shao, Han, & Reichardt, ; Li et al, ), soil moisture is considered to be the primary limiting factor for the rehabilitation of degraded ecosystems, especially in arid and semiarid regions (Messing, Fagerstrom, Chen, & Fu, ). Many studies have characterized the dynamics and magnitude of soil moisture changes to understand the influencing factors at different spatiotemporal scales (Deng, Yan, Zhang, & Shangguan, ; Mei et al, ; Zhao et al, ; Zhao et al, ). Existing experimental evidence suggests that multiple factors, including vegetation types (Deng et al, ; Mei et al, ), climate (D'Odorico & Porporato, ; Zhao et al, ), and topography (Qiu, Fu, Wang, & Chen, ; Yu et al, ), influence soil moisture and its dynamics.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have characterized the dynamics and magnitude of soil moisture changes to understand the influencing factors at different spatiotemporal scales (Deng, Yan, Zhang, & Shangguan, ; Mei et al, ; Zhao et al, ; Zhao et al, ). Existing experimental evidence suggests that multiple factors, including vegetation types (Deng et al, ; Mei et al, ), climate (D'Odorico & Porporato, ; Zhao et al, ), and topography (Qiu, Fu, Wang, & Chen, ; Yu et al, ), influence soil moisture and its dynamics. Precipitation and vegetation type have been proposed to be major factors that control soil moisture across the soil profile, as well as across whole landscapes (Chen, Huang, Gong, Fu, & Huang, ; Duan, Huang, & Zhang, ; Zhao et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, Deng et al () found no net change in soil moisture across the soil profile of 0–100 cm under a shrubland. Such a dispute might result from different precipitation regions being considered in a study (Mei et al, ; Zhao et al, ) or because of short timescales (Farley et al, ; Wang et al, ). Therefore, to gather information that can help maintain the sustainability of reconstructed ecosystems, it is necessary to better characterize the depletion or recovery of soil moisture under different vegetation types by carrying out studies spanning over a number of years in the Loess Plateau.…”

Section: Introductionmentioning

confidence: 99%

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Soil moisture variations in response to precipitation in different vegetation types: A multi‐year study in the loess hilly region in China

et al. 2020

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Vegetation restoration has been widely implemented as an effective approach to the control of soil erosion. However, severe soil desiccation is likely to occur if vegetation types and local precipitation conditions are not accounted for. In this study, an abandoned farmland and three typical vegetation types, including a natural shrubland, a plantation of black locust, and a natural oak secondary forest, were investigated to determine the characteristics of soil moisture in different hydrological years. The responses of soil moisture to precipitation were analysed at different timescales. Higher soil water contents were observed either in wet years or for natural vegetation types. The temporal response of soil moisture to precipitation was largely dependent on the timescale. At monthly scale, shallow soil moisture (0–100 cm) varied consistently with precipitation, whereas on interannual scale, precipitation is positively related to soil moisture along the whole profiles. Black locust and oak lands consumed more soil moisture than the shrubland, and severe soil desiccation developed in deep soil layers in the black locust plantation. The shrubland showed steeper regression slopes than other types for both the changes in soil water storage over time (ΔSWSt) versus the growing season precipitation and the difference in soil water storage with the abandoned farmland (ΔSWSv) versus the growing season precipitation, suggesting its higher adaptability to precipitation changes in this region. The results indicate that the shrubland develops optimal water use strategies through coevolution with local conditions and should be given precedence in vegetation restoration initiatives in this region.

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Section: Discussionsupporting

confidence: 93%

Section: Effects Of Precipitation and Vegetation Types On Soil Moismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soil moisture variations in response to precipitation in different vegetation types: A multi‐year study in the loess hilly region in China

et al. 2020

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Characteristics of deep soil layer water deficit under different artificial vegetation types of the Loess Plateau, China

Zhao,

Shen,

Zhang

et al. 2024

Hydrological Processes

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Soil water is a crucial factor for the growth of vegetation and sustainable development in water‐limited areas. After large‐scale vegetation restoration on the Chinese Loess Plateau, understanding the relationship between vegetation and deep soil moisture has become a crucial focus in current research. In this study, artificial forest (Pinus tabulaeformis [PT], Robinia pseudoacacia [RP] and Platycladus orientalis [PO]), apple orchard (AO), secondary forest (SF) and farmland (FL) were selected as the research objects, and grassland (GL) as the control, using soil‐drilling techniques. We systematically monitored the soil water content of 0–10 m soil layer over two hydrological years, and explored the effects of different vegetation types on soil water deficiency. The results showed that: (1) The deep soil water various significantly among different vegetation types. Compared with GL, the soil water content in all forest land was generally lower, and this difference became more pronounced in deeper soil layer (>7 m), which indicating the depth of the influence of vegetation on soil water has reached 10 m. (2) The mean soil water deficit size (SWDS) values of PT (0.14), RP (0.17), PO (0.07), AO (0.15), SF (0.10) and FL (0.27) in 0–1 m were all positive, indicating that surface soil water had accumulated during more than half of the sampling periods. In the 2–10 m soil layer, mean SWDS was negative in all vegetation types except in FL, leading to soil desiccation. SWDS was found to fluctuate with soil depth. (3) SWDS was affected by a combination of soil properties and vegetation growth. Our results indicate that the current afforestation model could lead to the deficiency of deep soil water. Therefore, it is imperative to make reasonable vegetation structure according to the available local soil and water resources in future vegetation allocation and management.

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The spatio-temporal characteristics of drought across Tibet, China: derived from meteorological and agricultural drought indexes

Yao

Liu

et al. 2019

Theor Appl Climatol

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The spatial variability of soil water storage and its controlling factors during dry and wet periods on loess hillslopes

Cited by 41 publications

References 43 publications

Soil moisture variations in response to precipitation in different vegetation types: A multi‐year study in the loess hilly region in China

Soil moisture variations in response to precipitation in different vegetation types: A multi‐year study in the loess hilly region in China

Characteristics of deep soil layer water deficit under different artificial vegetation types of the Loess Plateau, China

The spatio-temporal characteristics of drought across Tibet, China: derived from meteorological and agricultural drought indexes

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